Improvement in pumps



1G.` W. MQKENZIB.

Pump.

4No. 216,877. y Patented :une 24,1879.

Invevvr;

UNITED STATES PATENT OEEICE.

GEORGE W. MGKENZIE, OF HARRINGTON, MAINE.

IMPROVEMENT IN PUMPS.

Speeiiication forming part of Letters Patent No. 216,877, dated June 24,1879; application filed July 23, 1877.

To all whom it may concern:

Be it known that I, GEO. W. MCKENZIE, of Harrington, in the county of*Washington and State of Maine, have invented a new and Improved Pumpfor Cisterns; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawings, forming a part of this specification, in which-Figure l is a perspective view; Fig. 2, a vertical section; and Figs. 3,4, and 5 are different forms of levers for operating said pump.

I make the pump case or cylinder, A, Fig. 1, preferably, in rectangularform, of plank or boards firmly bolted together. The bottom B and top Oare held rmly in place by the screw rods a., which pass through theprojecting cross-pieces b and the top O.

In Fig. 2, D is the cylinder; E, the piston; F, the induction-port, andGr the dischargeport. The ports F and Gr each consist of two narrowopenings, with valves c and d, the valve d being hinged vertically.

H is the discharge-chamber, with which the discharge-pipe N isconnected.

In Fig. 3, L is the sink; M, the treadle or foot-lever, the inner end ofwhich is lpivoted to the base-board beneath the sink, and the outer endprojects several inches beyond the front of sink, and works-'up and downin a slot therein.

P is the piston-rod, which passes through the floor and is connectedwith the treadle M. S is a spring, which may be of any shape ormaterial, secured beneath the floor, and one end of which is attached tothe piston-rod.

When it is required to place the pump several feet away from the sinkthe lever l, Fig. 4, may be added, and connected to the treadle M by thelink o, passing through the door.

"he pump may be placed any distance from the sink by the use ofthepulleys J and J Fig. 5, connected by the wire K, which passes over thepulley J and under J", one end being attached to the link o, and theother to the piston-rod.

The operation of thepump, as thus described, is as follows: The foot isplaced on the lever M and pressure applied, when the piston E descends,the pressure of Water closing the induction-port F and opening thedischargeport G, allowing the water to escape into the chamber H and upthrough the dischargepipe N. On relieving pressure of foot from lever,the piston is raised by the action of the spring S, port G closes andport F opens, allowing' a new supply to be drawn into the cylinder.

It is evident the above-described pump is .particularly adapted tocisterns; butI do not GEORGE W. MGKENZIE.-

Witnesses DANIEL W. DINsMoRE, FRANK H. TUPPER.

